User's Manual

7.4
CN5, CN6, CN8, and CN9: ARDUINO
®
Uno V3 connector
CN5, CN6, CN8, and CN9 are female connectors compatible with the ARDUINO
®
standard. Refer to Figure 23 for
their location. Most shields designed for ARDUINO
®
can fit with the STM32WL Nucleo-64 board.
The ARDUINO
®
connector on the STM32WL Nucleo-64 board supports the ARDUINO
®
Uno V3.
Figure 23. ARDUINO
®
connector
The related pinout for the ARDUINO
®
connector is listed in Table 17.
Note:
ARDUINO
®
Uno V3 D0 and D1 signals are connected by default on USART1 (MCU I/O PB6 and PB7). Refer to
Section 6.6.5 for details on how to modify the UART interface.
Table 17. ARDUINO
®
connector pinout
Connector Pin number Pin name Signal name
STM32 pin
(1)
Function
(1)
CN6
1 NC - - Reserved for test
2 IOREF - - I/O reference
3 NRST T_NRST NRST RESET
4 3V3 - - 3.3 V input/output
5 5V - - 5 V output
6 GND - - GND
UM2592
CN5, CN6, CN8, and CN9: ARDUINO® Uno V3 connector
UM2592 - Rev 2
page 34/50